{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951861,-0.306531,0.000000,0.000000,0.112602,-0.349659,0.930086,0.000000,-0.284841,0.884505,0.369481,0.000000,-1817583.760963,5644075.553611,2341894.413467,1],    "boundingVolume": {    "region": [1.882261,0.378390,1.882425,0.378511,0.000000,27.454553]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45951.b3dm"}}}